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Siemens
Operating Instructions RMU7..B
CE1B3144_en
Building Technologies
Fault
2015-03-31
Fault
If a fault has occurred in the plant, it will appear on the
display and the LED inside the fault button will flash or be lit.
Proceed as follows:
LED flashes:
1. Press the
button to acknowledge the fault.
2. If the LED is still lit, the fault still exists
or
the button must
be pressed again to unlock.
LED lit:
1. Correct the fault.
2. If the LED is still lit, the fault can be unlocked by pressing
the
button.
Unlocking is possible only after the cause of fault has
been removed.
Contact your HVAC if the fault is not corrected.
Additional information about the display of faults:
Menu
Faults current.
Displays current faults. The following information is
displayed about each fault:
·
Source (e.g. pump 1).
·
The fault number (for the service engineer).
·
The date and the time of day the fault occurred.
Fault history...
Displays the last 10 faults. The information given is the
same as that provided for current faults.
Fault status message bus.
If your plant includes multiplied networked devices, faults
from other controllers are displayed on your controller.
Fault indication on the setting level
Display the current fault by pressing the ESC button for 2
seconds.
Path:
Welcome > Main menu > Faults...
Required information for HVAC engineer
Your controller has characteristic data that enable your
HVAC engineer to offer support, to answer your questions
about the plant, etc. The information is available in the
Device information...
submenus.
Operating line
Explanation, example
Plant type
A01.
Plant type adapted
Yes.
File name
AEFB01 U3B HQ.
Device type
RMU730B-1.
Software version
Of the controller.
Hardware version
Of the controller.
Path:
Welcome > Main menu > Device information... > Controller... > ...
Save energy without sacrificing comfort
·
During the day, do not allow the room temperature to
exceed 21 °C when heating. Each additional degree
increases heating costs by 6 to 7 %
·
During the day, do not allow the room temperature to fall
below 24 °C when cooling. Each degree below that level
increases the cooling costs
·
Guide values for the room temperature in living and
working spaces during heating and cooling periods:
–
Daytime during heating period: Precomfort = 19 °C,
Comfort = 20...22 °C.
–
Daytime during the cooling period: Precomfort = 28 °C,
Comfort = 22...24 °C.
–
Night time during the heating period: Economy =
14...18 °C. Protect objects sensitive to low
temperatures, such as plants!
–
Night time during the cooling period: Economy =
29...31 °C.
·
Ensure that there are no curtains, furniture or other objects
in front of or behind air inlets and outlets They have an
impact on air circulation and can cause drafts
·
Closed shutters and blinds reduce heat loss
·
Closing blinds in due time during the cooling season
reduces the impact of solar radiation, thus saving cooling
costs
·
Make sure air filters are checked and replaced at regular
intervals
If your plant uses a room unit with temperature and humidity
sensor, it should not be exposed to thermal and moisture
disturbances since these affect the control function. For this
reason, the following applies to the reference room where
the sensor is located:
·
Avoid drafts through open doors
·
Avoid heat gains from people, machines and lighting
·
Ensure that there are no curtains, furniture or other
objects in front of temperature and humidity sensors
Energy savings conserve our natural resources, thus contributing actively to environmental protection!
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Siemens Switzerland Ltd., 2003
Subject to change
